HR: 15:30h
AN: SH33A-07    [Abstracts]
TI: Modeling the Solar Wind in the Inner Heliosphere
AU: * GEHMEYR, M
EM: gehmeyr@lasp.colorado.edu
AF: LASP, University of Colorado, 1234 Innovation Drive, Boulder, CO 80303, United States
AU: Arge, C N
AF: Space Vehicles Directorate, AFRL, 29 Randolph Road, Hanscom AFB, MA 01731, United States
AU: Meyer, L
AF: CIRES, Space Environment Center, 325 Broadway Drive, Boulder, CO 80305, United States
AU: Odstrcil, D
AF: CIRES, Space Environment Center, 325 Broadway Drive, Boulder, CO 80305, United States
AB: One main effort of the Center for Integrated Space Weather Modeling (CISM) is to develop space weather models for the Sun-Earth chain. Among them is the Solar Wind model that gives a 3 dimensional description of the solar wind structures in the inner heliosphere. It is driven by daily NSO/SOLIS synoptic maps. We employ the Wang- Sheeley-Arge (WSA) algorithm to compute potential field solutions of the solar corona and derive inner boundary conditions for the ideal MHD code ENLIL. It in turn propagates the solar wind structures out to Earth and beyond. With this model we can describe the ambient solar wind at the three locations of the ACE and STEREO space crafts; we are also able to predict the plasma parameters for lead times of 1 to 5 days in 6 hour cadences. We report on validation efforts and prediction performance.
DE: 7599 General or miscellaneous
DE: 7833 Mathematical and numerical techniques (0500, 3200)
DE: 7924 Forecasting (2722)
DE: 7959 Models
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Joint Assembly